package homework09_Demo5_2;

public class Demo5_2 {

	public static void main(String[] args) {
		PupilStu p = new PupilStu();
		p.pay();
		MiddleStu m = new MiddleStu();
		m.pay();
		HighStu h = new HighStu();
		h.pay();
		ColgStu c = new ColgStu();
		c.pay();
		
	}

}
